Powder insufflator



Ndv. 19, 1929s 7 F. ARRIGO, JR., ET?AL. 1,736,147

POWDER INSUFFLATOR Filed Aug. 51, 1927 Patented Nov. 19, 1929 UNITED s'rarss earner; aare POWDER INsUFF A'roR Application filed August 31, Serial. No; 216,606.- a

Our invention relates to powder insuffiators, and more particularly to a device for conveniently placing a discharge of powder or other medicaments, other than fluid, into a cavity for the treatment thereof.

In most of the devices with which we are familiar the various parts thereof are all connected together and must be handled during the insertion of the nozzle into the cavity to be treated, with considerable inconvenience and awkwardness. l/V e have conceived the idea of a nozzle which can be conveniently handled and putinto place without any other part attached thereto, the outer end of said nozzle being open andadapted to have inserted thereinto telescopically the load carrying tube, said load carrying tube having means connected therewith for causing a blast of air to force the powder or medicament therefrom and through the inserted nozzle to the place to be treated, thus making it possible to first place the nozzle into the cavity to be treated, with such expander's'or guards as may be provided therewith, and then to insert the end of the load carrying tube into the open end of the nozzle and make the discharge. This avoids the trouble and inconvenience of having to handle the bulb or other air blast means and the powder or other medicaments during the placement of the nozzle, and greatly simplifies the use of the instrument.

In order to fully explain our invention, we have shown one practical embodiment thereof on the accompanying sheet of drawings, which we will now describe.

Figure l is a side elevation of a nozzle with expanders in their contracted positions;

Figure 2 is a side elevation-thereof, with certain of the eXpanders omitted to make the view clearer, and showing the tubular nozzle moved inwardly to expand the expanders as they are expanded after being first inserted into the cavity; we

FigureB is a side elevation of the powder carrying tube and air-blast bulb; and

Figure 4 is a side elevation of the nozzle and expanders with the powder carrying tube inserted ready for dischargeofthe powder,

-10to ofar. 1 Referring to Fig. 3, a tube 12, of

show the inner end ofthe powder tube.-;, Referring now more 111; detail to-the .draw- 1ng s,.the lnventlon as hereil-lustrated, com-' prises a tubular nozzle 5, haying the dis-. charge openings 6, in itsend, withadisc-7 thereon, and with a sleeve ;8-, thereon, and at 7 its outer end providediwithastop or nut 9, the outer end of said tubular-nozzle being open and free'to receive therein the tube carrying the powder o-rvother medicamenaas hereinafter referred to. a

Slidablymounted on said nozzle is a collar 10, provided with a series of springIw-ire expanders 11, eXtended forwardly and adapted to normally converge at their forward ends,

in the manner shown in F ig. 1-, but to -be ex' panded by said disc 7, when said tubular nozzle is moved forwardly through said collar 10, and into said expanders, asindicated'in: Fig.2. The sleeve 8, acts as a limit stop to prevent said'tubular nozzlefrom being withdrawn sufiiciently to place the disc-7, in'the larger portions 11 of saidexpanders'. The nut 9, also serves'as a limit stop to prevent the nozzle from being pushed through the collar powder carrying glass, is provided-with a rubber bulb 13, to

main cause an air blast through said part of the nozzlebeing shown .in sectionto tube. Said tube is provided at its end with graduations, as 1a, to indicate the amount of powderor other matter therein, This tube is loaded byinserting the end'thereof into a body of powder the desiredjclepth, the powder remaining in the end of the tube. When the nozzle and expanders have been insertedinto the cavity to be-treated and adjusted as desired, which can be conveniently done because there is no tube or other apparatus connected 1 readily inserted into the open outer end of said nozzle, and when the bulb 13 is compressed, said powder is blown through the nozzle openings 6, in a cloud so as to reach all parts to be treated, the expanders opera'ting to hold all parts open or expanded to make sure of exposure to the powder treat ment. l j V w We do not limit our invention to the details ztherewith, the powder tube and bulb can be as here shown for purposes of explanation, realizing that many changes can be made without departing from the spirit thereof, except as we are limited by the hereto appended claims.

We claim: I 1. A powder insufilator including in combination a tubular nozzle member having expanders thereon and adapted to be inserted 10 into cavity to receive the powder, the outer end of said tubular nozzle member being open to receive another tubular member, said tubular nozzle member having on its inner end means for expanding said expanders as 5 said tubular nozzle member ismoved tele- V 'scopically'therein, and a'powder holding tube adapted to have its end thrust into powder to pick up th'e'desired' amount thereof and to p "be, inserted telescopically into-the outer open 2o end of said tubular member, and means conneoted with "said tube for causing a blast of air through said tube and said tubular member to blow said powder therefrom, substan-e tiallyas shown and described.

, 2. A powderinsufiiato'r including in combination, *a tubular nozzle, wire expanders around said nozzle and adapted to beexpanded and contracted as said tubular nozzle is moved longitudinally tlierethrougl1,-said nozz'le having a disc like member on its end to move said expan'ders and a limit stop to limit its-movement in said expanders, the outer end of said tubular nozzle being open anddis- 7, connected to receive telescopically a powder containing tube, a powder holding tube adapted to have its end thrust into a body of powder to pick up the desired amount thereof, said tube being marked near its end toindicate the amount of powder therein, and

V 40 a bulb on the opposite end of said powder I holding tube to blow said powder therefrom, said tube being adapted to have its powder containing end inserted telescopically into 7 the open endof said tubular nozzle after the same has been put into place into the cavity to receive the powder treatment. I

V Signed at Los Angeles, Los Angeles Count'y, California, this 27th day of August,19'27.

F RANK ARRIG'O, JR. to FRANCESCO SUN'SERI. 

